[Bug c/99224] [9/10/11 Regression] ICE in location_wrapper_p, at tree.h:4052

[rguenth at gcc dot gnu.org]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=99224

Richard Biener <rguenth at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
   Target Milestone|---                         |9.4
           Assignee|unassigned at gcc dot gnu.org      |rguenth at gcc dot gnu.org
     Ever confirmed|0                           |1
             Status|UNCONFIRMED                 |ASSIGNED
   Last reconfirmed|                            |2021-02-24

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> ---
  if (TREE_CODE (arg) == SSA_NAME)
    arg = SSA_NAME_VAR (arg);

but that can resultin a NULL arg.